Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L5/00—Solid fuels
  • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
  • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
  • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
  • C10L5/12—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with inorganic binders
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L5/00—Solid fuels
  • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
  • C10L5/26—After-treatment of the shaped fuels, e.g. briquettes
  • C10L5/32—Coating
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L5/00—Solid fuels
  • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
  • C10L5/34—Other details of the shaped fuels, e.g. briquettes
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L5/00—Solid fuels
  • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
  • C10L5/34—Other details of the shaped fuels, e.g. briquettes
  • C10L5/36—Shape
  • C10L5/361—Briquettes

Definitions

• the invention relates to a grill briquette for the preparation of food on open embers as lumpy agglomerate comprising fine-grained to powdered coal or coke.
• the invention further relates to a method for producing such briquettes.
• a briquette for burning in an open fire which consists of a mixture of fine carbons of various degrees of incineration and various additives such as iron oxide or magnesium sulfate to improve the burning properties and an organic binder such as molasses, bitumen or starch.
• the binder should ensure as low as possible burnup.
• Such a briquette is not suitable as a fuel for the preparation of food, in particular because of the relatively high proportion of volatile constituents.
• a grill briquette of the aforementioned type and a method for its production are for example from DE 199 61 325 C2 known.
• This grill briquette is intended to substitute conventional grill briquettes made of charcoal dust and an organic binder, since the production of charcoal is relatively complex and expensive.
• the production of charcoal is not necessarily desirable because of the associated hardwood consumption from an environmental point of view.
• Colored barbecue briquettes are currently not or at least barely known. It is known to provide coal briquettes by immersion in dye baths with a colored coating.
• the invention is therefore an object of the invention to provide a grill briquette on the basis of fine-grained or pulverized coal or coke, especially a lignite coke briquette, which at least externally has a slightly shimmering or up to fully opaque color for promotional purposes, namely on hygienic harmless Way.
• the color should also be resistant to abrasion and be quick-drying if necessary in the production.
• the object is achieved by a grill briquette for the preparation of food on open embers as lumpy agglomerate comprising fine-grained to powdered coal or coke, which is characterized by a coloring pigment, which is applied to the surface of the agglomerate.
• the coloring pigment was sprayed onto the already finished, optionally dried grill briquette.
• a pigment application has production-related and cost advantages, since the spray application can optionally be carried out together with other auxiliaries, such as, for example, fragrances and / or ignition aids.
• Preferred pigments which are suitable as pigments are those which comprise pigment-based particles based on minerals.
• the pigments must be harmless to food law.
• the pigment-like particles are substantially platelet-shaped on a mineral basis.
• examples of such pigment-based particles based on minerals are mica, other phyllosilicates or mixtures thereof.
• the pigmented particles are preferably coated on a mineral basis. Due to the small size of the pigmented particles, depending on the nature of the coating of the particles and depending on the amount or thickness of the pigments applied to the surface of the agglomerate, a color effect of the grill briquettes sets.
• the pigmented particles are coated with a metal oxide or mineral oxide. Examples of such color effects inducing or influencing coatings are coatings based on titanium dioxide, tin oxide or iron oxide or any mixtures thereof.
• titanium dioxide tin oxide, iron oxide or mica coated with a mixture of titanium dioxide / tin oxide or titanium dioxide / iron oxide as the coloring pigment.
• a particularly preferred variant of the grill briquette according to the invention is characterized in that the coloring pigment has a sieve diameter of at least 5 .mu.m, preferably at least 10 .mu.m and more preferably in the range of 10 to 50 .mu.m, or an average diameter determined by laser light scattering of at least 5 ⁇ m, preferably at least 10 ⁇ m and particularly preferably in the range from 10 to 50 ⁇ m.
• the proportion of the surface-applied pigment on the grill briquette may be 0.0005 to 2% by weight, preferably 0.001 to 1% by weight, more preferably 0.005 to 0.5% by weight, and most preferably 0.01 to 0.1 wt .-% amount.
• Charcoal or lignite coke are preferably considered as coal or coke. Due to their composition, lignite or hard coal are not suitable for use in grill briquettes for the preparation of food in open flames for food law reasons.
• a variant of the grill briquette according to the invention is characterized in that the grill briquette comprises an organic binder, preferably in the form of starch or based on starch.
• the strength can be in the form of Corn, wheat or potato starch may be provided.
• a starch for example, native starch can be used, which is mixed with water mixed and then mixed with lignite coke.
• cold-swelling starch can be used, which is mixed after addition of water with lignite coke.
• native starch can be used which, after addition of dry sodium hydroxide, is mixed with water or which is mixed with sodium hydroxide in aqueous solution.
• the sodium hydroxide serves as a gelatinization aid (catalyst). By admixing sodium hydroxide, gelatinization can take place without additional heating.
• potassium hydroxide can also be used. This is widely authorized in the EU as a food additive called E 525 with no maximum limit for food.
• the grill briquette may comprise fragrance additives and / or an addition of an oxygen releasing oxidant and / or other adjuvants.
• the fragrance additives and / or the addition of an oxygen-releasing oxidizing agent and / or the other auxiliaries may each be distributed homogeneously in the agglomerate or, optionally together with the coloring pigment, be applied to the surface of the agglomerate, preferably by spraying.
• the grill briquette according to the invention preferably has a composition of 80-90 wt .-% lignite coke, 5-10 wt .-% of the binder and optionally 0.3-3 wt .-% of the applied on the surface additive of an oxygen-releasing oxidizing agent , In addition to the 0.0005 to 2 wt .-% of the applied on the surface of the coloring pigment and fragrance additives and / or other auxiliaries may optionally be incorporated into the grill briquettes or applied to the surface of the briquettes.
• a particularly preferred variant of the grill briquette according to the invention comprises more than 85% lignite coke, preferably lignite fine coke (average grain size ⁇ 1 mm), 5 to 10 wt .-% of a hot or cold swelling binder such as corn, wheat or potato starch and optionally 0.3-3 Wt .-% of the applied on the surface additive of an oxygen-releasing oxidizing agent.
• a hot or cold swelling binder such as corn, wheat or potato starch
• optionally 0.3-3 Wt .-% of the applied on the surface additive of an oxygen-releasing oxidizing agent may additionally be present or applied.
• the lignite fine coke can be substituted with fine-grained charcoal in any proportions. This can improve the ignition and annealing behavior of brown coal coke grill briquettes. Naturally, such a grill briquette still has a slower igniting and skillsglüh than a pure charcoal briquette, so that the addition of an additive of an oxygen-releasing oxidizing agent can be recommended. What is said here for lignite fine coke is also generally applicable to grill briquettes based on normal lignite coke.
• the application of the coloring pigment can basically be carried out by immersion in a bath containing the pigment, by spraying or by brushing in the broadest sense.
• a bath containing the pigment e.g. by the use of water-soluble binders
• dipping is detrimental.
• the application by brushing is impractical on an industrial scale.
• the coloring pigment is applied by spraying. It is particularly preferred if the application is applied to the dried molded articles by spraying a dispersion containing the pigment. Water is preferably used as the dispersing agent, since it is cost-effective, food safe and harmless.
• the spraying is carried out by continuously spraying the grill briquettes in a drum in a continuous process, namely in a continuous spraying device (1) for wetting solids with liquids with at least one rotatably mounted spray drum (3) at least a partial length has an approximately cylindrical or conical drum shell (6), which in each case has an inlet (10) and an outlet (11) at the front, wherein inside the spray drum (3) means for lifting and dropping the grill briquettes above the axis of rotation of the spray drum (3) are provided and wherein the spray drum (3) of at least one stationary spray bar (13) is penetrated.
• the grill briquettes are given in the inventive continuous flow sprayer at the upstream of the material flow provided end face continuously and continuously withdrawn at the downstream end face.
• the spray drum is preferably open at both ends.
• end faces of the spray drum can be provided with covers (rubber flaps or the like) for noise reduction.
• the grill briquettes can be lifted and dropped with appropriate installations in the spray drum so that they are at least moved by the spray cone or spray of the liquid to be sprayed and on be fully wetted this way.
• the spray bar extends parallel to the drum axis.
• the spray bar extends parallel to the axis of rotation but eccentrically arranged with respect to the cross section of the spray drum.
• the spray bar may have a plurality of spaced apart spray nozzles.
• the mixing internals in the spray drum are expediently designed so that the grill briquettes are dropped off above the drum axis or axis of rotation of the spray drum. Gravity caused then fall the grill briquettes through the spray cone or.
• the inclination of the spray drum with respect to a horizontal mounting plane is adjustable. Such adjustment can also be made during operation of the spraying device.
• the spray drum is arranged on a tilt-adjustable base frame.
• a tilt-adjustable base frame Under the basic framework according to the invention is not necessarily only a skeleton structure to understand, but this may also be a platform or a base that is adjustable in inclination.
• the drive of the spray drum and the spray bar can be fixed, so that, for example, the spray bar carries along each tilt adjustment of the base frame and its location is so clearly defined with respect to the drum axis.
• the continuous spray device is used for mixing and wetting the abrasion-sensitive grill briquettes
• the drum shell has at least partially sieves forming openings through which the abrasion can be dissipated.
• the spray drum may have, for example, on the last third of their length in the transport direction of the grill briquettes several evenly distributed over its circumference arranged sieve openings.
• the sieves may be formed, for example, as a slot sieves.
• a plurality of axially extending guide and / or lifting plates are arranged in the interior of the spray drum.
• These axially extending internals fulfill both the function of lifting the grill briquettes and the guidance of the briquettes in the direction of the drum axis or in the direction of the axis of rotation.
• the axially extending guide and lifting plates are arranged distributed at a constant distance from each other over the inner circumference of the drum shell.
• Baffles may be provided, which are preferably arranged in the region of the outlet of the spray drum. With these baffles the material discharge can be channeled, for example, so that the material can be selectively dropped onto a arranged below the outlet webbing conveyor.
• the drum inlet for example, a task chute, for example, be connected upstream as a half-shell slide.
• a collecting device for the grill briquettes is provided below the spray drum in the region of the screen openings. In particular, through the screen openings in the last third of the spray drum clogging of the same due to accumulating Brikettabrieb is reliably prevented.
• the continuous spray device according to the invention, designated 1, comprises a base frame 2 on which a spray drum 3 is rotatably mounted.
• the spray drum 3 is rotatably supported on the base frame 2 via a total of four non-driven rollers 4.
• the drive of the spray drum 3 via an electric motor 5, which is also arranged on the base frame 2.
• the electric motor 5 is designed as a mechanically adjustable geared motor, which is connected via a drive rack pinion with a stretched over the drum casing 6 roller chain 7 in engagement.
• the base frame 2 is supported by feet 8 with a bottom plate 9 against the mounting plane.
• the drum shell 6 is cylindrical and has a designated end face inlet 10 and a designated 11 opposite frontal outlet. Both end faces of the spray drum 3 are substantially open.
• the base frame 2 is adjustable in its inclination between 0 ° and about 10 °, even during operation of the continuous sprayer.
• one or both feet 8 via clamping spindles with trapezoidal thread in height adjustable.
• the inlet 11 is fed via an unillustrated task chute, which is preferably designed as a half-shell chute and is centrally located at a chute angle of about 30 ° to 35 ° in the lower part of the inlet 11, with material.
• a conveyor belt is arranged, on which the material can be dropped.
• the inlet-side edge 12 of the spray drum 6 is conically tapered upstream of the flow of material to prevent backstroke briquettes from escaping the briquettes on the page in question.
• a spray bar 13 is furthermore supported on the base frame 2 in a freestanding manner.
• the spray bar 13 is stationary on the base frame 2, that is also arranged rotationally fixed and passes through the spray drum 3 almost completely, which extends parallel to the axis of rotation and at a distance therefrom, so that the spray bar 13 is arranged off-center with respect to the cross section of the spray drum 3 ,
• On the Spray bars 13 are spaced from each other four spray nozzles 14, from which a liquid can be added to the grill briquettes without the addition of atomizing air or the like.
• the spray bar 13 is arranged eccentrically so that the mixing internals referred to below can throw off the grill briquettes above the drum axis through the spray cone 15 of the spray nozzles.
• baffles 16 are arranged uniformly over the circumference of the spray drum 3 inside the spray drum inside.
• the guide plates 16 extend parallel to the drum axis or to the axis of rotation and are in the illustrated embodiment against the direction of rotation of the spray drum 3 (clockwise) angled.
• baffles 17 are further arranged in the region of the outlet end of the spray drum 3 in the interior of which further extends radially inwardly at an angle to the drum axis. These baffles 17 (8 in number) extend on the circumference of the spray drum 3 each between the baffles 16 (also a total of 8 pieces).
• the guide plates 17 are arranged so that the material flow is channeled in the region of the outlet 11 of the spray drum 3.
• a plurality of perforations 18, which are distributed over their circumference, are provided in the drum casing 6 approximately in the last third of the spraying drum 3.
• material abrasion or briquette abrasion can be dissipated into a collecting trough 9 arranged below the spray drum 3 on the base frame 2.
• the spray drum 3 In the direction of Grillbri8ketttransports the spray drum 3 is intercepted by a circumferential collar 20 against a centrally disposed on the base frame 2 support roller 21.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Environmental & Geological Engineering (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Geology (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)

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Publications (3)

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Family Applications (1)

Country Status (2)

Cited By (1)

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Citations (2)

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• 2008
  • 2008-09-19 DE DE102008048113A patent/DE102008048113A1/de not_active Withdrawn
• 2009
  • 2009-07-15 EP EP09009198.4A patent/EP2166065B1/fr not_active Not-in-force

Patent Citations (2)

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